package com.itkang.command;

/**
 * <p>
 * 场景:
 * </p>
 *
 * @author york yuan
 * @version 1.0
 * @since 15/7/8下午4:13
 */
public class Light {


    public void on() {
        System.out.println("light is on");
    }

    public void off() {
        System.out.println("light is off");
    }
}
